• Home

The Ontario Natural Building Coalition is an advocacy group of designers, builders & homeowners working to promote healthy, high performance natural building strategies in the construction industry.

Upcoming events

06 Apr 2019 8:00 AM • Camp Kawartha, 1010 Birchview Rd, Lakefield ON
08 Apr 2019 9:00 AM • Endeavour Centre
13 Apr 2019 9:00 AM • Peterborough
25 May 2019 9:00 AM • Peterborough
01 Jun 2019 • Peterborough

More events...

Thank you to our 2019 Natural Building Conference Sponsors:

Job Postings

Professional Members - Contact us to list job postings available within your company! View our current Job Postings

Find A Natural Building or Straw Bale Professional

View our Business Directory for a complete list of designers, builders and more

Announcing the NEW Straw Bale Apprenticeship Program

The ONBC in partnership with The Endeavour Centre is now offering a new Apprenticeship Program for Straw Bale Builders. Click here for our Program details.

Discussion Lists

Natural Homes FOR SALE!!

From time to time, homeowners must sell their beloved straw bale home. ONBC members can make their listings visible here, check out the current Homes For Sale Listings.

Self-Serve Membership

Login to edit your profile, change address, renew your membership


The 2019 Ontario Natural Building Coalition's annual

Natural Building Conference & AGM 2019

April 6 and 7, 2019, at Camp Kawartha, near Lakefield.

This year's theme: "Healthy Homes"

This year's conference theme is "Healthy Homes".  For our technical content, we are excited to be tapping into our own roster of professional members to share their expertise on working with healthy, natural materials. How to presentations include material content data research, deciphering MSDS data as well as the famous ‘Red List’. We are also pursuing presentations by experts on the microbiome currently doing research in the US. There are case studies of a recent renovation as well as the results of fire and water damage to a straw bale building. Our community stream has presentations on partnering with First Nations and training upcoming builders in sustainable construction methods.

Here are just some of the presenters for this year's conference:

Chris Magwood/ Jen Feigin - Healthy Materials, labelling, how to do your own research, Red List, MSDS, 

Shane MacInnes - Breaking Down Healthy Materials in an attempt at Zero Toxin Renovation

Melanie Scott - Evolve healthy materials experience

Deirdre McGahern - Case Study: Fire + Water in Straw Bale walls, Low embodied energy foundation example, Allback Linseed Oil paint experience 

Bobby Ilg - Nature in the Gold Standard - Building Biology

Joshua Thornton  - Low embodied energy foundation examples, First Nations partnering

Marianne Griffiths - First Nations renewable water + power conversion, First Nations tradespeople: sustainable construction

Andy Oding - Buildings as systems

Jordan Hoogendam - HVAC Design for Healthy Houses

More information and Conference Registration here. 

We have some fabulous conference presenters this year - check out their bios here.

Brief descriptions of some of the presentations can be found here.

A big thank you to our 2019 conference sponsors!

Silver Sponsors:

Bronze Sponsors:





See photos of the 2018 conference.

Photos of the 2016 conference here.

Click here for photos of the 2015 conference.

Click here for an article and photos of the 2014 conference.



The Ontario Natural Building Coalition would like to thank all the homeowner hosts and tour-goers who participated in our Annual Ontario Natural Homes Tour

on Sunday September 30, 2018. 

Over 30 natural homes and buildings across Ontario opened their doors for participants to see examples of straw bale, rammed earth, light clay straw, timber frame, off grid, passive solar, and many other natural building methods and alternative technologies. 

If you missed this year's tour, please check back next summer for the details of the 2019 tour. Until then, please respect homeowners privacy and only drive to the homes if arrangements have been made with the homeowner.

Natural building construction uses locally obtained and renewable materials, to produce homes and buildings that are visually unique and healthy to live in, while striving to keep energy consumption and its’ associated emissions as low as possible. 


Visit our Natural Building Gallery to see houses built out of straw, wood & earth!

A Natural Home Tours Thank You

Over the years, many homes and buildings have participated in our Natural Building Annual tour.

Many of the homes that have been featured were models of innovation and energy efficiency and featured living roofs, natural clay wall finishes, rainwater catchment systems, grey water systems, composting toilets, while others incorporated solar and wind electrical systems, high efficiency wood burning appliances, solar domestic hot water systems, as well as a variety of other interesting green technologies.

The Ontario Natural Building Coalition would like to thank all the volunteer homeowners who have over the years graciously opened their doors and welcomed tour-goers. The annual tour would not be possible without them!

Click here for an article about one of the homes on our recent tour.

© Ontario Natural Building Coalition
Powered by Wild Apricot Membership Software